how can I change the output of this method which uses a superclass

Question

Hi I wanted to know how I could change the output of the display method so the output, which currently looks like this:

Leonardo da Vinci
40 seconds ago - 2 people like this.
No comments.
Had a great idea this morning.
But now I forgot what it was. Something to do with flying...

can be made to look like this

Leonardo da Vinci
Had a great idea this morning.
But now I forgot what it was. Something to do with flying...
40 seconds ago - 2 people like this.
No comments.

These are the two methods, which are responsible for part of the output in the superclass

public String toString()
{

    String text = username + "\n" + timeString(timestamp);

    if(likes > 0) {
        text+= "  -  " + likes + " people like this.\n";
    }
    else {
        text+= "\n";
    }

    if(comments.isEmpty()) {
        return text + "   No comments.\n";
    }
    else {
        return text + "   " + comments.size() + 
        " comment(s). Click here to view.\n";
    }
}

public void display()
{
    System.out.println(toString());
}

and these are the two methods in the subclass, which complete the output by calling the superclass above.

   public String toString()
    {
        return super.toString() + message + "\n";
    }

    /**
     * Display the details of this post.
     * 
     * (Currently: Print to the text terminal. This is simulating display 
     * in a web browser for now.)
     */
    public void display()
    {
        System.out.println(toString());
    }

Answer 1

This is the result you expect:

Leonardo da Vinci
Had a great idea this morning.
But now I forgot what it was. Something to do with flying...

40 seconds ago - 2 people like this.
No comments.

The value of the message is:

Had a great idea this morning.
But now I forgot what it was. Something to do with flying...

And the value of the super.toString():

40 seconds ago - 2 people like this.
No comments.

Your subclass toString() returns this:

public String toString()
{
    return super.toString() + message + "\n";
}

And your result is: super.toString():

Leonardo da Vinci
40 seconds ago - 2 people like this.
No comments.

and message:

 Had a great idea this morning.
 But now I forgot what it was. Something to do with flying...

Do you see why it is being printed in that order? You can simply change the order to:

return message + super.toString() + "\n";

This will change the order in which it is displayed.

And have the value of the username from the super.toString() printed in the variable message